In Tennessee, special viewfinders open up a new world to people with colorblindness Published November 9, 2021 at 1:45 PM EST Facebook Twitter LinkedIn Email Listen • 2:57 Viewfinders at parks in Tennessee allow people with colorblindness to see the many hues of fall. Blake Farmer of WPLN reports. This article was originally published on WBUR.org. Copyright 2021 NPR. To see more, visit https://www.npr.org.